RU2508578C2 - Hull structure for retaining group of square secondary batteries - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: device contains the first and the second setting surfaces, both designed with lots of receiving slots and ribs. Receiving slots of the first and the second setting surfaces are aligned in pairs so that between each pair of containing slots formed is receiving space, and between each pair of ribs formed is deformation gap. Corresponding square secondary batteries are located in specified receiving spaces. Distance between side surface of square secondary battery and opposite side surface of neighbouring square secondary battery is equal to the width of deformation gap, and distance between two side surfaces of the same square secondary battery corresponds to the width of square secondary battery. Width of deformation gap is more or equal to 2/5 of the width of square secondary battery.

EFFECT: eliminating short-circuit and batteries damages.

5 dwg

Description

FIELD OF TECHNOLOGY

This invention relates to a housing, in particular to a housing structure for holding a group of rectangular secondary batteries.

BACKGROUND OF THE INVENTION

Figure 1 shows a group of ordinary rectangular secondary batteries 10 located in the housing 11 so that these batteries 10 are located close to each other. This arrangement allows better use of the available space and prevents the risk that too large a distance between the rectangular secondary batteries 10 will lead to an uncontrolled displacement of these secondary batteries 10 and, as a result, will cause a short circuit.

It should be noted that the external or internal short circuit in the batteries leads to the swelling of the rectangular secondary batteries 10. For this reason, the sides of the batteries 10 are made in the form of deformable surfaces 12, allowing to relieve pressure inside the batteries in case of short circuits. Moreover, as shown in FIG. 2, if short circuits occur in closely spaced batteries 10, the expanded deformable surfaces 12 of the faulty battery will press on the adjacent rectangular secondary battery 101, thereby damaging the other rectangular secondary batteries 10.

The objective of the proposed invention is to reduce and / or eliminate the above disadvantages.

SUMMARY OF THE INVENTION

The main object of this invention is a housing design for holding a group of rectangular secondary batteries, providing a deformation gap with a width A that is equal to or greater than 2/5 of the thickness B of these batteries, that is, A≥2 / 5 B. Thus, even if as a result of short circuits simultaneous expansion of two adjacent rectangular secondary batteries will occur, the width of the deformation gap will be large enough to absorb the expansion of two adjacent rectangular secondary batteries and thereby prevent damage removal of the remaining rectangular secondary batteries.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 - image of a conventional housing design for holding a group of rectangular secondary batteries;

figure 2 - image of the housing structure of figure 1, in which one of the batteries is in an expanded state;

figure 3 - exploded view of the claimed housing design to hold a group of rectangular secondary batteries;

4 is a top view of the claimed hull structure assembly;

figure 5 - image of the structure of figure 4, in which two batteries are simultaneously in an expanded state.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The invention will be better understood from the following description, given with reference to the accompanying drawings, in which, for illustrative purposes only, a preferred embodiment of the invention is shown.

Figure 3 shows a housing structure 3 for holding a group of rectangular secondary batteries 20.

Each of these batteries 20 is a rectangular structure, on one end of which there is an upper surface 21, and on the other end is a lower surface 22. The upper surface 21 is provided with a positive terminal 211 and a negative terminal 212. There are two between the lower surface 22 and the upper surface 21 opposite side surfaces 23 and two opposite deformable surfaces 24.

The housing structure 30 is made with an internal space in which there is a first mounting surface 31 and a second mounting surface 32 opposite to it. On each of the mounting surfaces 31, 32 there are a plurality of alternating receiving grooves 33 and ribs 34. The receiving grooves 33 of the first mounting surface 31 are aligned in pairs with receiving grooves 33 of the second mounting surface 32 so that a rectangular space formed between each pair of receiving grooves 33 (by "pair of receiving grooves" refers to one h 33 on the first mounting surface 31 and another groove on the second mounting surface 32), forms a receiving space 40, and a rectangular space formed between each pair of ribs 34 (one rib on the first mounting surface 31 and the other on the second mounting surface 32) , forms a deformation gap 50. The corresponding rectangular secondary batteries 20 are placed in the receiving spaces 40, placing two side surfaces 23 in two receiving grooves 33.

4, the distance between the deformable surfaces 241 and 242 of two adjacent rectangular secondary batteries 201 and 202 is equal to the width A of the deformation gap 50. The distance between the two deformable surfaces 241 and 243 of the rectangular secondary battery 201 corresponds to the thickness B of the rectangular secondary battery 20. The width A of the deformation gap 50 is equal to or greater than 2/5 of the thickness B of the rectangular secondary battery 20, that is, A≥2 / 5 B.

Returning to figure 3 for a better understanding of the invention, its operation and principle of operation. The corresponding rectangular secondary batteries 20 are placed in the receiving spaces 40 of the housing structure 30 so that the side surfaces 23 of these batteries 20 are in the receiving grooves 33. It should be noted that the rectangular secondary batteries 20 are enclosed and firmly held by the ribs 34, which prevents their unwanted displacement.

Figure 5 shows an example of the consequences of a short circuit that led to the expansion of two adjacent rectangular secondary batteries 201, 202: after expansion, one deformable surface 241 of the rectangular secondary battery 201 protrudes outward at a distance of approximately 1/5 of the thickness B of the specified battery 201. Width A the deformation gap 50 is greater than or equal to 2/5 of the thickness B of the rectangular secondary battery 20 - that is, even if, as a result of short circuits, two adjacent rectangular secondary batteries are simultaneously expanded Rey 201, 202, the width A of the deformation gap 50 will be large enough to absorb the expansion of these two batteries 201, 202 and thereby prevent damage to the remaining rectangular secondary batteries.

The application materials describe and illustrate various embodiments of the proposed housing design, and it will be apparent to those skilled in the art that other embodiments of the claimed construction are possible in the claimed scope of legal protection of the invention.

Claims (1)

A housing structure for holding a group of rectangular secondary batteries, each of these batteries being a rectangular structure with an upper surface at one end and a lower surface at the other end, the upper surface being provided with a positive terminal and a negative terminal, and there are between the lower surface and the upper surface two opposite side surfaces and two opposite deformable surfaces; while the specified housing design is made with an internal space in which there is a first mounting surface and a second mounting surface opposite to it, the first and second mounting surfaces each provided with a plurality of alternating receiving grooves and ribs, while the receiving grooves of the first mounting surface are pairwise aligned with the receiving grooves the second mounting surface so that the rectangular space formed between each pair of receiving grooves forms a receiving space, the rectangular space defined between each pair of ribs forms a deformation gap, the placement of respective rectangular secondary battery in the receiving spaces is such that said two opposite side surfaces located in two receiving grooves; while the specified housing design is characterized in that:
the distance between two deformable surfaces of two adjacent rectangular secondary batteries is equal to the width of the deformation gap, and the distance between two side surfaces of the same rectangular secondary battery corresponds to the thickness of the rectangular secondary battery, while the width of the deformation gap is greater than or equal to 2/5 of the thickness of the rectangular secondary battery.

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